JPS6122438B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a lighting device for a straight tube fluorescent lamp.

[Background technology]

In general, straight tube fluorescent lamps have the disadvantage that wiring is complicated because it is necessary to run wiring from one end to the other end. In addition, when wiring and starter lead wires were passed through the sides of the ballast, it was necessary to avoid heat from the ballast.

[Object of the Invention] An object of the present invention is to provide a lighting device that can eliminate the need for crossover wiring and prevent the lead wire from passing through the side of the ballast.

[Disclosure of the invention]

The lighting device of the present invention includes a first straight fluorescent lamp and a second straight fluorescent lamp arranged in parallel to each other, and a first straight fluorescent lamp and a second straight fluorescent lamp arranged adjacent to each other. A first starting device and a second starting device connected between the non-power side terminals of one filament and between the non-power side terminals of the other filament, and one filament at the front of the first straight tube fluorescent lamp. a first ballast connected to a power supply terminal of the second straight tube fluorescent lamp; and a first ballast connected to a power supply terminal of the other filament located on the opposite side to the connection side of the first ballast of the second straight tube fluorescent lamp. a second ballast having one pole connected to the first ballast and the second ballast;
and an electrode having the other electrode connected to the power supply side terminal of the other filament of the straight tube fluorescent lamp and the power supply side terminal of the one filament of the second straight tube fluorescent lamp.

According to the configuration of the present invention, the filaments at adjacent ends of a pair of straight fluorescent lamps are connected in series via the starter and the ballast, thereby preheating the filaments and supplying the kick voltage by the ballast. This eliminates the need for crossover wiring. Also, since the lead wire of the starter is connected between the parallel fluorescent lamps, it passes through the side of the ballast.
Wiring can be easily avoided and there is no need to provide insulation to the lead wires. Furthermore, it is easy to deploy multiple lights and produce a wide variety of products.

Embodiment A first embodiment of the present invention is shown in FIGS. 1 and 2. That is, this lighting device includes a first straight fluorescent lamp T1 and a second straight fluorescent lamp T2 arranged in parallel with each other, and a first straight fluorescent lamp T1 and a second straight fluorescent lamp T2. between the non-power supply side terminals Q1 and Q3 of one filament f ₁₁ and f ₂₁ adjacent to each other, and the other filament
A first starting device G1 and a second starting device G2 connected between the non-power side terminals Q2 and Q4 of f ₁₂ and f ₂₂ , respectively, and the one filament f ₁₁ of the first straight fluorescent lamp T1. a first ballast B1 connected to the power supply side terminal Q5 of the second straight tube fluorescent lamp T2, and the other filament _f22 located on the opposite side to the connection side of the first ballast B1 of the second straight tube fluorescent lamp T2. Second ballast B2 connected to power supply side terminal Q8
and one pole is connected to the first ballast B1 and the second ballast B2, and the power supply side terminal Q6 of the other filament _f12 of the first straight fluorescent lamp T1 and the second straight A power source VS is provided, the other electrode of which is connected to the power source terminal Q7 of the one filament _f21 of the tube fluorescent lamp T2.

Here, the power supply side terminals Q5 to Q8 mean the terminals connected to the power supply VS, the first ballast B1, or the second ballast B2 among both ends of each filament _f11 to _f22 , and The non-power side terminals Q1 to Q4 are those connected to the first starting device G1 and the second starting device G2, and mean the terminals on the opposite side from the power side terminals Q5 to Q8 of each filament _f11 to _f22 . . Also, one pole of the power supply VS means one of the power supply terminals,
The other pole means the other power terminal. Said power supply
Although two VSs, power supplies VS1 and VS2, are shown in FIG. 2, this is for convenience of explanation. However, when used as shown in Figure 2,
The term "one pole" means one of the power supply terminals of the power supplies VS1 and VS2, which are at the same potential, and the other pole is the other terminal, which is at the same potential.

The first starting device G1 and the second starting device G2 are examples of glow starters. In addition, the first ballast B1 and the second ballast B2
takes Chiyoke as an example. L1 and L2 are lamp sockets, f ₁₁ , f ₁₂ , f ₂₁ and f ₂₂ (FIG. 2) are filaments, and P1 and P2 are starting circuits.

FIG. 1 is a configuration diagram of a lighting fixture to which this lighting device is applied, and the fixture main body unit 1 includes a first straight fluorescent lamp T1, lamp sockets L1, L2, and a first straight fluorescent lamp T1.
It consists of a starting device G1 and a first ballast B1, each of which has a terminal E1 connected to the outside from the nearest position.
~E4 is exposed. The appliance main unit 1a includes a second straight fluorescent lamp T2 and a lamp socket L.
1, L2, a second starting device G2, and a second ballast B2, which are arranged parallel to but symmetrically with the instrument main body unit 1 and whose terminals E1 and E3 are connected to each other. Connectors 2, 2a are connected to both ends of these instrument main units 1, 1a, and
Wiring terminals E5 and E6 of a and terminals E2 and E4 are connected to each other. In addition, a wiring board 3 is interposed between the connectors 2 and 2a in parallel to the appliance main unit 1a, a terminal block C for power supply is provided on the wiring board 3, and a power supply VS is connected to terminals 5 and 6 of the terminal block C. Ru.

In this lighting device, when a power source VS is connected between terminals 5 and 6, a starting current flows through starting circuits P1 and P2, respectively. That is, starting circuit P
1 preheats the filaments f ₁₁ and f ₂₁ via the first starter G1 and the first ballast B1,
The filaments f ₁₂ , f ₂₂ are preheated by the starting circuit P2 via the second starting device G2 and the second ballast B2. Due to the operation of the first starter G1, a kick voltage is generated from the first ballast B1 of the starter circuit P1, and the first straight fluorescent lamp T1 is lit.
Similarly, the second straight fluorescent lamp T2 is turned on by the operation of the second starter G2.

With this configuration, this lighting device has starting circuits P1 and P2 at both ends of the first straight fluorescent lamp T1 and the second straight fluorescent lamp T2, respectively.
This eliminates the need for crossover wiring as in the past, making wiring easier and improving the aesthetic appearance of the wiring. Further, the first starting device G1 and the second starting device G2 are connected between the non-power side terminals Q1 and Q3 of the adjacent filaments f ₁₁ and f ₂₁ and between the filament
In order to connect between the non-power supply side terminals Q2 and Q4 of f ₁₂ and f ₂₂ , the first ballast B1 and the second ballast B2
This eliminates the need for wiring along the sides of the lead wire, reduces the temperature of the lead wires, and eliminates the need for heat insulation for the wiring. Furthermore, it is easier to standardize parts, and the main unit of the instrument is
By using the lights 1 and 1a as basic units, manufacturing a plurality of identical appliance body units 1' and 1a' and arranging them as shown in FIG. 3, it becomes easy to deploy multiple lights and produce a wide variety of products.

A second embodiment of the invention is shown in FIG. That is, this is a modification of the embodiment shown in FIG.
A wiring board 3 is arranged at the center of the appliance main units 1, 1a, 1a', 1', and ballasts B3, B4 for two lamps are mounted on both ends of the wiring board 3. The wiring of the instrument body units 1a', 1' is the same as in the first embodiment, and each part is connected to the instrument body units 1a', 1'.
Since it has the same configuration as a, the same reference numerals are appended with '' and the explanation will be omitted.

In this embodiment, the ballasts B3 and B4 are not mounted on each instrument main unit 1, 1', 1a, 1a', so the structure of each instrument main unit 1, 1', 1a, 1a' is simple and lightweight. In addition to the advantage that the internal wiring becomes simpler, the second embodiment also has the same effects as the first embodiment.

〔Effect of the invention〕

According to the lighting device of the present invention, the filaments at the adjacent ends of a pair of straight fluorescent lamps are connected in series via the starter and the ballast, thereby preheating the filaments and reducing the voltage caused by the ballast. Since the supply is carried out, there is no need for crossover wiring. Furthermore, since the lead wire of the starter is connected between the parallel straight fluorescent lamps, wiring passing through the side of the ballast can be easily avoided, and there is no need to provide heat insulation to the lead wire. Furthermore, it has the advantage that it is easy to deploy multiple lights and produce a wide variety of products.

[Brief explanation of the drawing]

Fig. 1 is an exploded schematic diagram of a lighting fixture according to a first embodiment of the present invention, Fig. 2 is a lighting circuit diagram, Fig. 3 is an explanatory diagram of an example of multi-light deployment, and Fig. 4 is an illustration of a lighting device according to a second embodiment. It is a wiring diagram of an instrument. T1...first straight fluorescent lamp, T2...second
straight tube fluorescent lamp, B1...first ballast, B2
...second ballast, G1 ...first starting device, G
2...Second starting device, Q1-Q4...Non-power side terminal, Q5-Q8...Power side terminal, _f11 - _f22 ...
Filament, VS...power supply. 〓〓〓〓〓

Claims (1)

[Claims] 1. A first straight fluorescent lamp and a second straight fluorescent lamp arranged in parallel with each other, and a non-power supply of one filament adjacent to each other of the first straight fluorescent lamp and the second straight fluorescent lamp. a first starting device and a second starting device connected between the side terminals and between the non-power side terminals of the other filament, and connected to the power side terminal of the one filament of the first straight tube fluorescent lamp; a second ballast connected to a power supply side terminal of the other filament located on a side opposite to the connection side of the first ballast of the second straight tube fluorescent lamp; and one pole is connected to the first ballast and the second ballast, and the power supply side terminal of the other filament of the first straight fluorescent lamp and the one of the second straight fluorescent lamps. A lighting device equipped with a power source with the other pole connected to the power side terminal of the filament.